Three thousand million years ago complex chemical molecules in the sea began to come together to form cells.

Cells split, replicating themselves as bacteria do, and as time passed by they diversified into different groups, some stay attached together as to form chains (which we know today as algae). Others formed hollow balls witch collapsed upon themselves to form an internal cavity, these were the first multicelled organisms (sponges are their direct descendants).

Some organisms became more mobile and developed a mouth which opened into a gut, other had bodies stiffened by an internal rod, they developed sense organs around their front end, a related group had bodies split into sections with petrifaction’s on either side so they could more more easily around the sea floor.

Some even developed hard protective skins which gave their bodies some rigidity, so now the seas were filled with a great verity of animals.

Around 450 million years ago some of these creatures crawled out of the sea onto land, which exploited the landscape in many different ways, some grew flap on their back with later developed into wings, the insects had arrived. Life moved to the air.

Those creatures with stiffening rods in their bodies strengthened it by covering it with bone, a scull developed with a hinged jaw to grab and hold prey, they developed fins to help them swim giving them speed and power, fish now rules the seas.

One group developed to breath air from the waters surface, their fleshy fins became weight supporting legs and 375 million years ago a few of these back bone creatures followed the insects onto land. They were amphibians with wet skins and they had to return to water to lay their eggs, some of their descendants developed dry scaly skins and lay eggs with water tight shells. These reptiles were the ancestors of today lizards, snakes, tortoises and crocodiles and of course the group that came to dominate the land, the dinosaurs.

65 million years ago a great disaster overtook the earth and exterminated most animals, all dinosaurs disappeared apart from one branch, whose scales developed into feathers, they were the birds.

Whilst the skies were dominated by birds a small, even insignificant rodent grew in numbers on the ground beneath, these creatures differed from their competitors in which they were warm blooded with bodies insulated with fur, they were the first mammals.

Because of mammals warm blood they were able to thrive everywhere both during the day, and by night, in the seas, snow and desert, on grassy plains, and up in the trees, were the first primates appeared.